In 2024, ASCE-EWRI and The Water Research Foundation entered into a new partner agreement that will continue the long-term collaboration on the BMP Database into the future with ASCE-EWRI now assuming the lead role with support from the Mile High Flood District and Villanova University as new co-sponsors. Members of EWRI’s Urban Water Resources Research Council and others are part of a steering committee that will lead the project into the future.
As of 2025, the database stores performance information for over 790 BMPs throughout the U.S. and several other countries with over 385,000 water quality records for over 500 pollutants for BMPs such as bioretention, extended detention basins, wetland basins, permeable pavement, manufactured treatment devices and others. Academic researchers and local governments voluntarily submit performance studies to the database to collaboratively advance stormwater management practice to improve water quality and protect drinking water sources.
An on-line dynamic data retrieval and statistical analysis tool enables researchers to conduct their own queries for specific BMPs and pollutant types. The project also includes monitoring and reporting protocols to improve the quality of research and help standardize study methodologies for stormwater monitoring programs.
2025 Updates to the International Stormwater BMP Database Complete
To continue the participation of EWRI and UWRRC in the database effort. The end product continues to be a continuously-updated database of BMP performance information that can be used by stormwater practitioners to investigate the relationship between BMP design and resulting performance.
